#0  0x00007f1e97790d05 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = 0
        pid = <value optimized out>
        selftid = 2311
#1  0x00007f1e97794ab6 in abort () at abort.c:92
        save_stage = 2
        act = {
          __sigaction_handler = {
            sa_handler = 0x3e, 
            sa_sigaction = 0x3e
          }, 
          sa_mask = {
            __val = {139769368282734, 139769380835312, 139769368274618, 140733649453344, 139769367246946, 206158430232, 140733649453360, 140733649453136, 139769367158132, 206158430256, 140733649453384, 13788672, 7716448, 91662992, 2338042681683304287, 140733649459950}
          }, 
          sa_flags = -1752439110, 
          sa_restorer = 0x7f1e984b96ae
        }
        sigs = {
          __val = {32, 0 <repeats 15 times>}
        }
#2  0x00007f1e977897c5 in __assert_fail (assertion=0x7f1e984b8f1c "mutex->__data.__owner == 0", file=<value optimized out>, line=62, function=<value optimized out>) at assert.c:81
        buf = 0xd26600 "compiz: pthread_mutex_lock.c:62: __pthread_mutex_lock: Assertion `mutex->__data.__owner == 0' failed.\n"
#3  0x00007f1e984b040d in __pthread_mutex_lock (mutex=<value optimized out>) at pthread_mutex_lock.c:62
        __PRETTY_FUNCTION__ = "__pthread_mutex_lock"
        type = <value optimized out>
        id = <value optimized out>
#4  0x00007f1e98b7d899 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x000000000042cee8 in PrivateScreen::~PrivateScreen() ()
No symbol table info available.
#6  0x000000000042d169 in PrivateScreen::~PrivateScreen() ()
No symbol table info available.
#7  0x000000000042b215 in CompScreen::~CompScreen() ()
No symbol table info available.
#8  0x000000000042b349 in CompScreen::~CompScreen() ()
No symbol table info available.
#9  0x0000000000422989 in CompManager::fini() ()
No symbol table info available.
#10 0x0000000000423188 in main ()
No symbol table info available.